some of them allow for custom controlelr settings like most other games... you could try rigging up the Z or C button on the nunchuck to act as the B button "trigger" and then you could probably use the Zapper or something of the type, and be able to play most of the shooter games...

really i wish they would have released the original concept to ther gun where the controll stick is directly ontop the gun that would have made for nice 1 handed gun play... they might make something like it soon... i think they went with the zapper for cost reasons...

If you want to try something on your own later on let me know... i wouldnt mind cracking open a wiimot and nunchuck and try to rig up something that would work for ya... keep in mind though thats 60 bucks to even try...lol

Wii sports (except boxing), Wii play, Wario ware smooth moves, A lot of Rayman Raving rabbids, you can be the 2nd player in Mario Galaxy, but all you can do it wave the wii mote and collect Star bits for player 1, could be fun, umm thats all i can think of for now that you can use 1 hand.